But the folk star could have little idea just how prescient her words, reflecting on the troubled history of the Yazidi people, would be.

Just a year after this song was uploaded to YouTube, ISIS fighters stormed Iraq's Sinjar province, home to the country's small Yazidi minority, and sparking terror across the region.

Now, instead of singing songs of love and loss, Shingali is issuing a battle cry.

She has laid down her instruments and taken up arms to fight those accused of committing genocide against her people, as the head of the Sun Brigade, an all-women unit of the Peshmerga, the Kurdish armed forces.

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Shingali says she would not normally condone violence, but that the Islamic militants' brutality has left her and her comrades with little choice.

"There should be no killing in the world," she says. "In the Yazidi book, it says to have a clean heart. Every person must do this.

"But what do you do when you need to fight, when there is no one to defend you and your family?"

Photos:The women's battalion fighting ISIS

Photos:The women's battalion fighting ISIS

Xate Shingali is a Yazidi musician who has recruited over 100 girls and women to form the Sun Girls battalion.

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Photos:The women's battalion fighting ISIS

Shingali says many girls approach her to join and most families are very happy for their daughters to join the Sun Brigade.

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Photos:The women's battalion fighting ISIS

Shingali hopes that the girls will be properly trained in the next two months and be ready to take on ISIS.

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Photos:The women's battalion fighting ISIS

Noura, Adlah, Basma and Maha are four young Yazidi girls looking to join the Peshmerga to fight against ISIS. All of them say they want to protect the honor of their family and want to fight against ISIS abuse.

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Photos:The women's battalion fighting ISIS

Shingali says she is "Proud to see all the women from Yazidi fighting with Pehsmargha everywhere, and the first time that Kurdish women are fighting against ISIS."

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ISIS considers the Yazidi -- monotheists who believe the Earth has been left in the care of a peacock angel -- to be devil-worshippers, and has subjected them to large-scale persecution.

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"You will never be able to take away our honour," insists another. "We will liberate our homeland."

The Sun Brigade's members say they never thought they would become soldiers.

"But after Daesh came to Sinjar, we left our jobs, our schools, we left everything," explains one of the recruits, using the pejorative Arabic name for ISIS. "This is not about money or power. It's about protecting our body as women."

The Sun Brigade is currently undergoing basic training. It won't be posted on the frontline just yet -- that decision rests with the Kurdish government -- but the plan is for it to support Kurdish forces hoping to regain territory lost to ISIS.

"Daesh will be scared of us," says one of the women, using an alternative name for the terror group. "Because we are going in as Peshmerga and fighting them directly."

The women are not battle-tested; most had never held a gun before they signed up. But there is no shortage of volunteers.

"A lot of women and girls have contacted us, wanting to join up," says Shingali. "You have to go to their father or mother [to get their permission], and they say, 'That's my girl, you can take them to fight anywhere.'